stop Mac screen from sliding left/right
Hello - I use a bluetooth mouse on my 2015 Mac. I rarely swipe the touch pad. But the Mac often acts as if I 've swiped the touch pad to slide whatever's on the screen off.
If I'm reading e-mail, and I open the stickies, the e-mail will slide off to the left or right. And vice versa. Or, opening the e-mail will slide Pages docs or PDFs off the screen. Sometimes I can work around this, but who needs the irritation?
I use a 2015 Macbook Pro and Big Sur 11.4 and Safari.
Any help much appreciated.
Thank you
Don